Here are the changes I use to play the 1961 Antonio Carlos Jobim's (pictured above) Bossa Nova song One Note Samba. The opening four-bars of the A section is a great "I-VI7-IIm7-V7" standard progression substitution.I play the tune in a moderate 4/4 Bossa Nova tempo in the key of C. (This song is usually played in the key of Bb). My chord fingerings in standard (EADGBE) tuning are as follows: Em7 = x7978x; Eb7 = x6868x; Dm11 = axaa8x Db7b5 = 9x9a8x; Gm11 = 3x331x; Gb7b5 = 2x231x; Fmaj7 = 1x221x; Bb9 = x1011x; C6 = 8x798x; Fm7 = x8689x; Bb7 = 6x676x; Ebmaj7 = bxccbx; Eb6 = bxacbx; Ebm7 = bxbbbx; Ab7 = xbab9x; Dbmaj7 = 9xaa9x; Dm7b5 = axaa9x; Db7b5 = 9x9a8x; and D7 = axabax (Note: 10 = a; 11 = b; 12 = c; and x=Don't play)